Tramontina 5.5-Quart Cast Iron Dutch Oven for $49.97. Select in-store pickup at Walmart to save on shipping. Otherwise, shipping is free on orders over $50. Here is a screenshot for your reference. It is available in Green, Red, and Cobalt Blue colors. The dutch oven is made of cast iron with a porcelain enamel exterior and interior, oven-safe up to 450°F.